Improvement in fire-proof floors



Patented July 23,1872,

I[J\/%URS Mm:- y m mums) l. HODGSON & W. H. BROWN. Improvementin Fire-Proof Floors, NSQ 129,827

WQ'NESSE FFIOE.

IsAAc HODGSON AND WILLI M H. BROWN, on INDIANAPOLIS, INDIANA.

IMPROVEMENT m FIRE-PROOF FLOORS.

Specification forming part of Letters Patent No. 129,822, dated July 23, 1872.

To all-whom it may concern:

Be it known that we, IsAAo HoD'esoN and .WILLIAM H. BROWN, both of the city of Indianapolis, in the county of Marion and State of Indiana, have jointly invented certain new and useful Improvements in the Construction of Fire-Proof Floors,of which thefollowing is a specification:

The drawing represents a View, in perspective, of a portion of the flooring, showing our invention as applied to wooden floor-beams.

The following description will enable skilled artisans to make and use our invention.

The wooden beams A are placed at the usual distances between centers, and slabs or tiles 0, of hard-burned clay, about two inches thick, twelve inches wide, and of a length about onequarter inch less the distance between beamcenters, and directly upon these the flooringboards Bare secured. The floor-slabs or tiles 0 are made with a ridge of about one-quarter inch projection by one inch wide along the two edges of the upper faces,which run parallel with the floor-beams, so as to form depressions H; and they are beveled about one-quarter inch on all four of their edges, so that their upper faces will be the smallest. a These slabs or tiles are laid upon the beams in a bed of mortar spread along the top of the same, as shown, and will nearly meet in the center of the beam, while the cross -joints between the beams are laid close at the bottom, and the spaces between the tiles will be filled with plaster Paris or cement; and, if desired, the depressions H in the upper faces of the tiles may also be filled and graded off perfectly true. Upon this slabbed 0 the floor is laid, and secured by nails passing through the cement, between the ends of the tiles, into the beams, the spaces above the beams being left for that purpose.

Having described our invention, we claim- The floor slabs or tiles G, having their upper surfaces ridged and their edges beveled to form spaces, and placed upon a bed of mortar directly upon and between the beam-centers,

to which'they are secured by nails passing through the flooring '-boards and the filled spaces between the tiles into the beams, essen tially as described.

ISAAC .HODGSON. WILLIAM H. BROWN. Witnesses:

ARTHUR DAvIs, HARRY TAYLOR. 

